128348385 has 32 divisors (see below), whose sum is σ = 237209472. Its totient is φ = 58567680.

The previous prime is 128348347. The next prime is 128348387. The reversal of 128348385 is 583843821.

It is not a de Polignac number, because 128348385 - 2¹⁵ = 128315617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128348387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20074 + ... + 25683.

It is an arithmetic number, because the mean of its divisors is an integer number (7412796).

Almost surely, 2^128348385 is an apocalyptic number.

128348385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128348385 is a deficient number, since it is larger than the sum of its proper divisors (108861087).

128348385 is a wasteful number, since it uses less digits than its factorization.

128348385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45793.

The product of its digits is 184320, while the sum is 42.

The square root of 128348385 is about 11329.0946240201. The cubic root of 128348385 is about 504.4252324254.

The spelling of 128348385 in words is "one hundred twenty-eight million, three hundred forty-eight thousand, three hundred eighty-five".